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52811015 = 510562203
BaseRepresentation
bin1100100101110…
…1010100000111
310200101002002112
43021131110013
5102004423030
65123531235
71210612655
oct311352407
9120332075
1052811015
11278a0774
1215829b1b
13ac30a2a
147029dd5
154982a95
hex325d507

52811015 has 4 divisors (see below), whose sum is σ = 63373224. Its totient is φ = 42248808.

The previous prime is 52810999. The next prime is 52811021. The reversal of 52811015 is 51011825.

52811015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52811015 - 24 = 52810999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5281097 + ... + 5281106.

It is an arithmetic number, because the mean of its divisors is an integer number (15843306).

Almost surely, 252811015 is an apocalyptic number.

52811015 is a deficient number, since it is larger than the sum of its proper divisors (10562209).

52811015 is a wasteful number, since it uses less digits than its factorization.

52811015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10562208.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 52811015 is about 7267.1187550500. The cubic root of 52811015 is about 375.1815772502.

The spelling of 52811015 in words is "fifty-two million, eight hundred eleven thousand, fifteen".

Divisors: 1 5 10562203 52811015